A 30-year-old plaintiff was stabbed with an object by a perpetrator in their 40s, between Lögarängsvägen and Åpiren-Lögarpiren.
The plaintiff was seriously injured and was taken to hospital by ambulance.
Early in the investigation, information was received that a man and a woman could have been involved in the crime.
Thanks to clear and good witness statements about the incident, the police were able to arrest a man and a woman for the crime after surveillance.
After questioning the suspects and people who had information to provide in the investigation, the duty prosecutor in the case decided to release the woman on Sunday and continue the detention of the man.
The police and prosecutor have got a picture of what happened and the investigation situation looks good.
The injured man is being treated in hospital.